企鹅的身体构造图示

在纯氧中点燃铝箔会有耀眼白光铁丝在氯气燃烧棕黄色烟有浓盐酸的玻璃棒到氨气瓶子里有白色烟雾覆盖黑色氧化铜的cu被酒精蒸汽还原成铜哪个错? 汽水 浓硫酸 浓盐酸 饱和食盐水 哪个在空气中放置一段时间后,质量会增加 为什么? 请问这个怎么写?一定会给好评的! 请问这个怎么写?我一定会给好评的 高中英语单选2道—Could you have the work which needs skills and patience ___ by the end of this week?—No,I can't .Only one-third of it has been done up to now.A. finished B. finishing C. to be finished D.finish此题追问：have sth done 高中英语单选2Yahoo,Sohu,and sina are popular website____you can download what you like.a.at which b.from which详解, 两个高中英语单选1.Yesterday i tried to call you,but i could't get through as the telephone was alwaya in______.A needB useCcaseDaddition为什么选择B?2.They expect the students to be responsible for the things they do,just as grown-ups____ _____number of the visitors were shocked by_______ number of the butterflies around the huge tree.A.A; a B.A; the C.The; a D.The; the_____the buildings were knocked down in the tsunamis in Indonesia A.A great many B.A mumber of C.A great many of D.A 俩高中英语单选all of the apples are rotten all of the apples ihave been rotten 为什么答案是第一个而不是第二个?已经烂掉了……my mother went home,___the door openA.findingB to find为什么不是B而是A?to不是可以表 高中英语单选1the climate of shanghai is better than ____of nanjing.a.that b. 1个高中英语单选1.The students like physics best because the way their teacher teaches_______creativity.A.exchange for B designs for C.lets out D.allows for 一道高中英语单选He left his job_________.A.for health reasons B.of health causes C.causes of health D.reasons for health【答案选A,其他想为什么不选? How amazing it is that astronauts are exploring outer space!It's a challenge,I guess,______man against nature.A.of B.for C.by D.about我知道要把I guess 看成插入语,但为何后面用of 呢,而不是for呢? 高中英语一道单选Nobody knows ________broke into the house last night and stole the important papers A.who was it that B.it was who that C.who it was that D.that it was who 于是完全分不清啊啊.选C,为什么其他三个不行,另外这 求翻译几段英文下面3句： This hybrid typically goes by the name N. x briggsiana... doesn't seem to surface very often... do u have any seeds left or do u no any budy with carnivorus plant seeds ill be willing to buy depending on the price w when it comes,everyone b_ many things and people often make a s_ kind of food called dumplings.(首字母填空）On New Year'sEve,all the family m_come b_ home to get together.翻译句子：在那一天,我们互赠礼物.关于圣诞节的事.我 "我的国籍在中国"用英语怎么说"我最喜欢做的运动是打排球"用英语怎么说"我最喜欢的颜色是红色"用英语怎么说"我最喜欢的食物是冰淇淋"用英语怎么说我是一个很爱吃香甜的女孩！用英语 英语几道题（快!）He has very ______ time for fun.He always has too muach homework to do.A、few B.a few C.little D.a little 1、She is a famous ___(sing).2、I __ (not like ) going out.3、They enjoy ___(listen) to music.4、I go shopping for presents___ get lots of food ready.A.or.B.but.C.and.D.so.5、Would you like ___apples?A.any .B.a lot.C.some.D.much. 这图据说很恐怖,智商160以上的才能看得懂. 卷面分析怎样写 彩虹有哪七种颜色 如果一艘飞船的航行速度能无限接近光速,那么,它航行一光年的距离、大概需要多久就可以了?我在一本科普书籍上曾看到过,一艘宇宙飞船,如果它的速度能达到99.9999999999999999%的光速,也就是 以99%光速,飞到10光年之外的星球,需要多少年?我在果壳网上看到了一个这样的问题,如题.地球上看是10年是吧,在飞船上看是多少年?感觉涉及到相对论呢?请问为什么,在飞船上看只有1.42年?这样 使100g含水99%的食盐溶液变成含水98%的食盐溶液,可采取的措施有A 再加入1g食盐B 蒸发掉49g水C 加1%的食盐溶液100gD 蒸发掉50g水（理由） 要使100g含水99%的食盐溶液变成含水98%的食盐溶液,可采用的措施有[ ]A.再加1g食盐B.蒸发掉50g水C.蒸发掉49g水D.加3%的食盐溶液100g 《三体》中最后程心坐光速飞船飞往相距太阳系286光年的恒星时为什么只用了52个小时? 如果一艘飞船以光速或者无限接近光速从地球飞向4.2光年外的比邻星,对于飞船里的人来说,分别要多久?如果一艘飞船以光速或者无限接近光速从地球飞向4.2光年外的比邻星,对于飞船里的人来 求一些好听的英文歌,妈妈说标题必须长长长长长~太非主流的先pass（一边玩去）较冷门的好听的优先推荐别只顾自己喜欢什么都打上来个人喜欢稍稍活泼点的,别太DJ或摇滚风了.像《she》、《 英语翻译US President Barack Obama delivered a speech to students around the US some days ago.The speech was addressed in front of a group of the 9th grade students at Wakefield High School in Arlington,Virginia,near Washington DC,and was broadcas 一个人坐在一艘飞船上,飞船的速度为光速,他从一个距离地球10光年的地方前往地球,为什么不是经过10年?难道一个人加速到光速,和光子的速度不同么?为什么光的速度需要10年就可以到达,而飞 一个星球距离地球100光年,一架宇宙飞船以接近光速的速度匀速飞向地球.以地球为静止不动的惯性坐标系中,地球过了100年,飞船上的生物过了几秒.那如果以飞船为静止不动的坐标系,得出相同